Fatal error: Uncaught ArgumentCountError: Too few arguments to function pong_content(), 0 passed in /var/www/html/Zotlabs/Web/Router.php on line 309 and exactly 1 expected in /var/www/html/extend/addon/hzaddons/pong/pong.php:16 Stack trace: #0 /var/www/html/Zotlabs/Web/Router.php(309): pong_content() #1 /var/www/html/Zotlabs/Web/WebServer.php(118): Zotlabs\Web\Router->Dispatch() #2 /var/www/html/index.php(14): Zotlabs\Web\WebServer->run() #3 {main} thrown in /var/www/html/extend/addon/hzaddons/pong/pong.php on line 16